085-SCRU-0018
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15447-{4E6F0144-94A6-44FD-A687-B3BCE39B6B29} » Citing info
Plot ID Fields:
Author Plot Code	085-SCRU-0018
Author Observation Code	085-SCRU-0018
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-77 º
State or Province	Virginia
Named Places	county: Fairfax county: Fairfax region|state|province: Virginia
Layout Fields:
DSG Polygon	8 x 12.5 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	16 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	channel shelf/stream margin/bar
Hydrologic Regime	non-tidal - seasonally flooded
Soil Moisture Regime	subhydric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	02-Sep-2003
Observation End Date	02-Sep-2003
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
Method Narrative	Releve Virginia Division of Natural Heritage, see http://www.dcr.virginia.gov/natural_heritage/documents/nh_plotform_instructions.pdf
Overall Taxon Cover Values are Automatically Calculated?	no
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Field Height	7 m
Field Cover	75 %
Misc Fields:
Observation Narrative	Species-poor herbaceous vegetation of open, intermittently exposed cobble bars on the shore of the Potomac River shore. Dense, rhizomatous colonies of Justicia americana are characteristic, and exclude most other species.

Taxa occurring on this plot-observation
Change plant label: --Choose a value-- Author's plant name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, USDA Code Original Interpretation, Common Name Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, USDA Code Current Interpretation, Common Name
Change Strata Shown: --choose one-- show strata (no strata on this plot) show overall cover show strata + overall
ord Author Plant Name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, Common Name Original Interpretation, USDA Code Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, Common Name Current Interpretation, USDA Code Stratum Cover Original Cover Code Basal Area Biomass Inference Area Stems: Stem Diameters (graphically): 1 Justicia americana Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   -all-   87.5 % 9       -none- 2 Phyla lanceolata Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   -all-   1.5 % 3       -none- 3 Xanthium strumarium Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   Xanthium strumarium **   -all-   0.505 % 2       -none- 4 Hibiscus laevis Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   Hibiscus laevis **   -all-   0.505 % 2       -none- 5 Salix nigra Salix nigra **   Salix nigra **   Salix nigra **   Salix nigra **   Salix nigra **   Salix nigra **   Salix nigra **   Salix nigra **   -all-   0.505 % 2       -none- 6 Apocynum sibiricum Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   Apocynum sibiricum **   -all-   0.505 % 2       -none- 7 Eragrostis pilosa var. pilosa Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   Eragrostis pilosa var. pilosa **   -all-   0.05 % 1       -none- 8 Echinochloa muricata Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   -all-   0.05 % 1       -none- 9 Platanus occidentalis Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   -all-   0.05 % 1       -none- 10 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   0.05 % 1       -none-
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Stratum Definitions:
Sorry, no Stratum Definitions found.
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